Fan-casing and the pedestal or bracket which carries the bearings for the fan-wheel shaft.



S40. DAVIDSON.

PAN (meme AND 2911B PEDESTAL 0R BRACKET WHIGH GARRIES THE BEARINGS FOR THE FAN WHEEL SHAFT. APPLICATION FILED JUNE 8,'1907.

Patented July 27. 1909.

3 SHEETS-SHEET 1 Fig. 2

HWE/V OR:

WITNESSES-Y s. 0. DAVIDSON. FAN GASING AND THE PEDESTAL 0R BRACKET WHICH GARBIES THE BEARINGS FOR THE FAN WHEEL SHAFT.

L H A b v k NORRIS PETERS. Inc. Lnno WASNzNGTON D C s, 0'. DAVIDSON. FAN CASING AND THE PEDESTA E BBAGKET WHICH cums THE BEARINGS FOR-THE PAN. WHEEL SHAFT.

Arrmonldn FILED JUNE 8, 1907. Patented July 27, 1909.

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d E m J -16 I ,0 i a L I I WITNESSES! 9% W fl M mmms Par I. I vmo. WASHINGTON. D C I UNITED STATES- PATENT oFFIoE.

SAMUEL OLELAND DAVIDSON, or BELFAST, IRELAND, assleaoaev MESNE- ASSIGNMENTS,

TO AMERICAN BLOWER COMPANY, OF NEW YORK."

or GREEN ISLAND, NEW YORK-,4}. CORPORATION FAN-CASING AND THE PEDESTAL oa nmiqimr; wmcn -CA-RRIES mm muses FOR 1 TIBETAN-WHEEL snn'jrr. 1

To all whom it may concern:

Be it known that I, SAMUEL CnELAND DAvmsoN, of Sirocco Engineering \Vorks,

' pedestal has been provided with special side flanges to which parts connected with. the casing have been bolted or secured. This construction has necessitated careful machining of the flanges and a precise fitting of the parts. Considerable trouble has also been found in casting the pedestals, due to ture it is foundthat the-heat 0f the gas is communicated to the pedestal with a result that thebearings become so overheated that it is necessary to provide a water cooling system for them. Accordingto my invention these several disadvantages are greatly lessened, if not entirely avoided. To this end I provide a pedestal which is constructed at one or both ends with a vertical face orflange (hereinafter called the vertical face) at right angles to the fan shaft, and to such vertical faceI attach the fan casing bymeans of brackets of Z-shape'd, or U- shaped cross section, the parallel flanges of the brackets being attached to such vertical face and to the side of the fan casing re spectively. By this construction the costof the fan mounting is considerably reduced. As the br ackets can be attached at any point on the vertical face of the pedestal or the side bf the tan casing, no careful fitting is required. If the brackets are connected to Specificationof Letters-Patent. Application filed June 8, 1907. serial No. 378,032.

Patented an 27, 1909.-

either the casing'or the pedestal, the drilling and bolting of the brackets to the remaining part is a simple and certain operation. Fur thermore, .by this construction the fan casing while adequately supported is spaced apart from the pedestal a distance coresponding to the width of the bracket, so that the heat of the gas being operated upon is prevented to a large extent from being transmitted to the pedestal. In thepreferred fornr of my invention, "wherein two straight vertical brackets are used, there exists a verticallydisposed airspace or gap between the side of the casing and the end of, the pedestal," which permits a flow of air between the two ed on one pedestal, one fan being at each end thereof, said vertical face may be formed on each end of the pedestal-and the connection of both fan casings thereto may be the same 'as herein described.

two fan casings one mounted on each/ end of a pedestal. I

-Figure 1 is 'a side elevation of a sirlgle fan mounted upon a pedestal showing the em ployment of straight brackets. sectional elevation on line AA Fig. 1. Fig. 3 is a part sectional plan of F ig. ,1.

two fans mounted upon a pedestal. v Fig. 5 is a part sectional elevation corresponding to Fig. l of a modified constructionwhere a elevation on the line B B, Fig. 4. Fig. 7 is a part sectional plan of Fig; l. Fig. 8 is a. similar view to- Fig. 5 with two fans mounted upon, one pedestal.

shaft are mounted is'constrncted on the side toward the fanccasing bwith a vertical face orflange 0 (hereinafter called the vert1cal which is on that side to the base of the pedt'hereto, which attachment vls'efi'ected by the employment of straight brackets of Z or 'U-shaped cross section as shown at e. The

Fig. 2 is-a.

Referring first to Figs. 1,2 and 3- the ped-v estal a on which the bearings of the fan face) disposed at right angles to the fan shaft and extending from below the bearing estal, said vertical face 0 being also parallel with the side (i ofthe casing b to be attachedparts, so that the bearings are kept com-( parativelycool. When two fans are mou ntv The accompanying drawings illustrate the invention as applied both to one fan casing mounted on one end of the pedestal and to Fig. 4 is a similar view of Fig. 1 showing-- curved bracketis used. Fig.6 isa sectional faces of the said two parallel flanges f and g of said bracket are respectively attached on the one side to sald vertical face a and on the other side to the side (Z of the casing b with which the surflanges are correspondingly construction illustrated in fan casing is not entirely supported by the-pedestal but itself rests on the floor. In order that the vertical brackets may have a lighter appearance the flanges f which are attached to the vertical faces 0 of from the top of the pedesparallel. In the these figures the the pedestal may, tal upward, be cut away without detriment to the construction, that part of the bracketwhich is attached to the fan'casin'g being extended upward as shown as far as is convenient or consistent with the strength required.

In Fig. .4 is shown two fan casings I) mounted, at each end of the pedestal a said pedestal being provided with vertical faces 0 ateach end thereof construction and references otherwise re maining the same. j Referring to Figs. 5, 6 and 7 which show the modification where a curved bracket is employed and Where the casing is entirely supported by the pedestal, the pedestal a is constructed as before described with a vertical face 0 and the side d of the casing b is attached to the'said vertical face 0 of the pedestal by means of a curved "or ring shaped bracket of Z or U-shaped cross section as shown at h (hereinafterreferred to as the ring bracket). The two parallel flanges j and 7c of said ring bracket are respectively attached the one j'to the said vertical face 0 of.

the pedestal and the one 7.: to thesided of the casing b and with which the surfaces of the said flanges are correspondingly parallel. v

The ring bracket 72. is shown as mounted for the whole or a part of its circumference on the side of the casing baround an opening m therein concentric with the axis of the fan wheel n and larger diameter than the fan wheel so as to allow of the latter being inserted and withopening is provided on The same. size of the opposite side of the casing so that eitherface of the casing can be attached to the pedestal and the fan be used to discharge as either a right or left hand type. The projecting flange'lc'of the;

drawn therethrough.

from and parallel to-th'e fan casing b has in it a number of holes, say eight, spaced equidistantly apart around it, and holes corresponding with say four continuous holes in said ring bracket are, provided in the vertical face 0 of the pedestal at the same radius from the, center'of the fan shaft as the holes in the ring bracket, .sothat when the ring bracket is placed with the lower part of its circumference against the vertical face of for the purpose, the 1 ,fore' described may be preferably of a little apart the pedestal it can be securely bolted thereto and the fan casing when thus attached to the pedestal is very rigid and requires no further support. I

In Fig. 8 the pedestal a is provided with two vertical faces 0 and connecting brackets at each end thereof whereby two fans may be mounted upon the one pedestal and driven from the one shaft. hIt will be evident that with eight holes in t e bracket and samebeing equidistant apart, that any four contiguous holes therein correspond with four holes in the vertical face of the pedestal, and the said'casing can therefore be mounted on the pedestal with its discharge nozzle pointing in any of eight different directions.

If, however, the above described 'facility for adjusting the direction of the discharge be not required then that part "of the projecting parallel flange k of said ring bracket which is above the fan. center may for lightness of appearance be cut away.

- I have described the bracket as attached primarily to the fan casing but when preferred it may be primarily attached to the vertical face. of the pedestal and further the adjustment as to the position of the discharge nozzle of the fan may be obtained by a similar arrangement of holesand bolts either between the two parts or SQCUODS, of

the ring brackets when such is made in two difi'erent parts as shown or by a similar arrangementbetween the flangesj or 7.: and the fan casing. The ring bracket construction may be employedwhere the fan casing rests upon the ground as in Figs. 1 to 3:01 the vertical bracket maybe employed where the fan casing does, not rest directly on the ground. V g The pedestal itself apart from; the special construction of its vertical face as hereinbeofany suitable form.

In both of the constructions described it willbe observed that the mounting of the fan casing is considerably simplified and cheapened, and that the transmission of heat from the casing to the bearings is very largely reduced. 4 lVhile I have shown in detail several embodiments of my invention I do not wish to be; limited thereto as various modifications may be made therein without departing from the spirit of the invention." I What I claim and desire to secure by Letters Patent is:- t I 1. The improved means for mounting fan casings on pedestals comprising: the combi nation of a pedestal, a fan casing supported on one side only of said pedestal, a vertical face on the pedestal parallel with the side. i i

flange being parallel to and attached to the side of the fan casing and the other flange parallel to and attached to said vertical face on the pedestal substantially as set forth.

2. The improved means forinountingfan casings on pedestals comprising the combination of a pedestal with vertical faces, fancasln'gs disposed at each end of said pedestal,

j each of said casings being supported on one 'side only of saidpedestal, brackets, formed separately Jfromsaid pedestal disposed at eachjend of the pedestal and between same and the fan casings, each bracket having two parallel flanges-suitably spaced apart, one of said parallel flanges beingattached to. the fan casing and the other flange paraling the two parallel flanges thereof spaced apart one flange being attached to the sidev of t l iefan casing and the other to the said vertical face on, the pedestal, substantially as set forth.

4.: Theiniproved means for mounting fan casings on pedestals comprising the combination of a pedestal, a fan casing, a vertical tached on the one hand to the side of the fan casing and on the other handto the said I ver ical face .on the pedestal.

5; The improved means for mounting fan v casings-on pedestals comprising the combination of a pedestal, a fan casing, a vertical face on the pedestal parallel with the side of the fan casing, a bracket formed of two vertical bars each bar having two parallel flanges suitably spaced apart, said flanges being attached on the one hand to the side of the fan casing and on the other hand to the said vertical face on, the pedestal, the flanges which are attached to the pedestal being (liscontinued -at the top of the pedestal, those flanges which'are attached to the casingbeing continued upward above the pedestal for a suitable distance substantially as set forth.

6; The improved means for mounting fan casings on pedestals comprising the combination of a pedestal having a vertical face i at an end thereof, a fan casing, and means formed separately from the pedestal for sup porting said casing, said means being fixed to said vertical face, and being adapted to hold said casing substantially out of contact therewith.

7 The improved means for mounting fan casings on pedestals comprising the combination ofalpedestal having a vertical face at an end thereof, a fan casing, and two ver- .tically arranged brackets each having two parallelflanges suitably spaced apart, one of said flanges being connected. to said vertical face and the other to said fan casing and said brackets being spaced apart to proide an air gap between the casing and pede tal. In witness whereof, I have hereunto signed my namein the presence of two subscribing witnesses;

SAMUEL CLELAND DAVIDSON. Vitnesses JOHN GLEAYER, SAM EL Wool). 

